CN211856779U - Comprehensive detection device - Google Patents

Abstract

A comprehensive detection device is characterized by comprising an optical detection device, a partial discharge detection device, a signal processing device, a shell and a display device; the shell comprises a detection part and a handle part, the handle part is arranged below the detection part, and the handle part and the detection part are integrally manufactured; the interior of the shell is hollow and is used for arranging a signal processing device; the display device is arranged at one end of the detection part close to the handle part; the optical detection device is a combination of one or more of an infrared optical detection device, an ultraviolet optical detection device and a visible light optical detection device; the utility model discloses a comprehensive detection device, this kind of detection device have infrared camera lens, ultraviolet camera lens and visible light camera lens, still have the office and put detection device, can detect infrared, ultraviolet, visible light image simultaneously to and the office puts the signal, collect multiple detection device as an organic whole, made things convenient for the maintainer to overhaul.

Description

Comprehensive detection device

Technical Field

The utility model relates to a detection area especially relates to a comprehensive testing device.

Background

At present, there is a technology for manufacturing instruments such as a partial discharge detection device by adopting a partial discharge sensor; it can analyze the detected result according to the detected ultrasonic wave signal, high frequency electromagnetic signal or earth electric wave signal. For example, non-contact scanning is carried out on high-voltage primary equipment such as a transformer, a GIS and the like in operation, and the external discharge part can be found and determined; the open-air transformer station equipment is subjected to charged scanning, and whether various discharge phenomena occur or not can be found and determined, such as corona, electric arc, flashover, creepage, broken wire, arc discharge and the like; scanning the high-voltage switch cabinet in operation, and finding and determining the parts of faults such as partial discharge, screw loosening and the like; the method can also find and position insulator discharge on the iron tower, creepage of the open-air cable head and partial discharge of the underground cable; even it is possible to detect whether or not a mechanical failure occurs in a large mechanical equipment bearing due to poor lubrication, whether or not leakage occurs in high-pressure seal gas liquid, and the like.

The existing partial discharge detection device can realize non-contact, visual, audible, storage and display waveform and charged detection. In order to increase the signal detection distance of the partial discharge detection device, a long-distance probe can be adopted; the partial discharge detection device may also be provided with a signal receiver, such as a partial discharge detection device for detecting ultrasonic waves; according to the installation mode of the partial discharge sensor, the partial discharge signal can be focused to the partial discharge sensor, such as a parabolic partial discharge receiver.

However, in particular use, since partial discharge is used for test discharge, the discharge may bring about a change in heat; therefore, in order to further verify the discharge condition, the inspector wants to see a visible ultraviolet image or a visible infrared image. This requires the inspector to carry a plurality of inspection devices, such as a partial discharge inspection device, an infrared inspection device, an ultraviolet imaging device, a visible light imaging device, etc., which is inconvenient. In addition, for the above instruments, how to aggregate the obtained data and have obvious relevance is also a problem to be solved.

Disclosure of Invention

The utility model aims at solving the defects of the prior art, providing a comprehensive detection device, simple structure and convenient use.

A comprehensive detection device comprises an optical detection device, a partial discharge detection device, a shell and a display device; the optical detection device comprises an optical lens; the optical lens and the display device are arranged on the shell.

Further, the casing is whole to be dog-ear type, and the casing includes detection portion and handle portion, handle portion sets up in detection portion below.

Further, the partial discharge detection device comprises a partial discharge sensor and a partial discharge receiver; the partial discharge receiver is arranged on the shell, and the partial receiver is arranged at one end, far away from the handle part, of the detection part; the partial discharge sensor and the optical lens are arranged at one end of the detection part far away from the handle part, and are positioned in the partial discharge receiver; the optical detection device is arranged in the through hole on the sunken surface of the partial discharge receiver.

Further, the display device is arranged at one end of the detection part close to the handle part.

Furthermore, the partial discharge receiver is a paraboloidal receiver, the partial discharge receiver is integrally in a pot cover shape, and one side of the partial discharge receiver protrudes; the other side is concave; the partial discharge sensor is arranged on one side of the recess of the partial discharge receiver, and can be of a telescopic structure; a communication interface is arranged between the partial discharge detection device and the detection part, and the partial discharge detection device and the communication interface adopt a detachable connection mode; the communication interface can be connected with various types of partial discharge detection devices.

Further, the optical detection device is arranged adjacent to the partial discharge sensor, and the detection directions of the optical detection device and the partial discharge detection device are consistent; the optical detection device and the detection part adopt a detachable connection mode.

Further, the optical detection device is a combination of one or more of an infrared optical detection device, an ultraviolet optical detection device and a visible light optical detection device; the infrared optical detection device comprises an infrared optical lens, an infrared detector and an infrared signal processing circuit; the infrared detector adopts a refrigeration or non-refrigeration type infrared focal plane detector;

the ultraviolet optical detection device comprises an ultraviolet optical lens, an ultraviolet detector and an ultraviolet signal processing circuit;

the visible light optical detection device comprises a visible light optical lens, a visible light detector and a visible light signal processing circuit.

Further, the comprehensive detection device further comprises a signal processing device; the interior of the shell is hollow and is used for arranging a signal processing device; the signal processing device comprises a communication device, a positioning device, a storage device, an image processing device, Bluetooth and a control device.

Further, the image processing device converts the thermal image data obtained by the optical lens into a data type suitable for display and recording through correction, interpolation, pseudo color, synthesis, compression and decompression operations; the communication device can receive and send out wireless signals of 5G, 4G, WIFI; the communication device wirelessly transmits image data and partial discharge data obtained by detection of the optical lens and the partial discharge detection device to a storage module or a processing device outside the device; the communication device is provided with an interface for data transmission.

Further, the storage device comprises a flash memory card, a temporary storage device and a nonvolatile storage device; the temporary storage device is a volatile memory and comprises a RAM and a DRAM; the nonvolatile storage device is a storage card, the storage card is arranged in the storage card slot, and the storage card can be freely disassembled and assembled in the storage card slot; a memory card interface is arranged in the memory card slot;

the display device comprises a display screen and an operation device; the display screen performs control according to the received instruction of the control device, and generates and outputs the image data for display stored in the temporary storage device into a video signal which can be displayed on the display screen; the display screen adopts a screen with the aspect ratio of 4: 3 or 16: 9, a liquid crystal display screen; the operation device comprises a recording key, a switching key, a focusing key, a confirmation key and a cross key;

the comprehensive detection device is also provided with an alarm device which can send out an alarm signal under a set condition;

the handle part and the detection part are integrally manufactured, and an obtuse angle is formed between the detection part and the handle part.

Adopt the beneficial effects of the utility model are that:

the utility model discloses a comprehensive detection device, this kind of detection device can have infrared optics detection device, ultraviolet optics detection device and visible light optics detection device wherein one or more combinations, still has the office and puts detection device, can detect infrared, ultraviolet, visible light image simultaneously to and the office puts the signal, collect multiple detection device as an organic whole, portable makes things convenient for the maintainer to overhaul work.

The utility model realizes the relevance among infrared, ultraviolet and visible light images by adopting the lens and the spectroscope with the same degree; the information of the detected body, the position and the like are prestored, so that the association storage of the partial discharge detection information and the image information is realized.

Drawings

Fig. 1 is an external view of a comprehensive testing device according to a first embodiment of the present invention;

fig. 2 is a front view of the integrated detecting device according to the first embodiment of the present invention;

fig. 3 is a right side view of the integrated detecting device according to the first embodiment of the present invention;

fig. 4 is a partial cross-sectional view of an optical lens of the integrated detecting device according to the first embodiment of the present invention;

fig. 5 is a rear view of the integrated detecting device according to the first embodiment of the present invention;

fig. 6 is a diagram showing the relationship among the components of the integrated detecting device according to the first embodiment of the present invention;

fig. 7 is a partial cross-sectional view of a general detection device according to a first embodiment of the present invention, showing an unobtrusive optical lens;

fig. 8 is a schematic diagram illustrating an optical lens of an integrated detection device according to a first embodiment of the present invention is located in the middle of a local receiver.

The attached drawings indicate the following: optical detection device 1, partial discharge sensor 2, partial discharge receiver 3, detection unit 4, handle unit 5, and display device 6.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Example one

As shown in fig. 1-5 and 7-8, the comprehensive detection device comprises an optical detection device 1, a partial discharge detection device, a signal processing device, a housing and a display device 6. The optical detection device 1 comprises an optical lens. The casing wholly is the dog-ear type, and the casing includes detection portion 4 and handle portion 5, handle portion 5 sets up in detection portion 4 below, and handle portion 5 makes with detection portion 4 an organic whole, forms the obtuse angle between detection portion 4 and the handle portion 5. The inside fretwork of casing is used for setting up signal processing device. The partial discharge detection device comprises a partial discharge sensor 2 and a partial discharge receiver 3. The partial discharge receiver 3 is disposed at one end of the detection portion 4 far from the handle portion 5. The partial discharge sensor 2 and the optical lens are disposed at one end of the detection portion 4 away from the handle portion 5, and the partial discharge sensor 2 and the optical lens are disposed inside the partial discharge receiver 3. The display device 6 is disposed at one end of the detection portion 4 close to the handle portion 5. In this embodiment, the partial discharge detection device is a partial discharge detection device that detects ultrasonic waves.

The partial discharge receiver 3 is a paraboloid receiver, the partial discharge receiver 3 is integrally in a radar pot cover shape, and one side of the partial discharge receiver 3 protrudes; the opposite, the other side is concave. The partial discharge sensor 2 is disposed on a side of the partial discharge receiver 3, and the partial discharge sensor 2 may have a telescopic antenna-like structure. The partial discharge sensor 2 may be disposed in the center of the partial discharge receiver 3, as shown in fig. 2; an optical lens may also be disposed in the center of the partial discharge receiver 3, as shown in fig. 8; in this embodiment, the partial discharge sensor 2 is located in the middle of the partial discharge receiver 3, so that the partial discharge receiver 3 can conveniently gather the ultrasonic information on the partial discharge sensor 2. Set up communication interface between detection device and the detection portion 4 is put in the office, and detection device is put in the office and communication interface adoption detachable connected mode, for example adopts threaded connection or buckle to be connected. The detachable partial discharge detection device can be detached when partial discharge detection is not needed, only the optical detection device 1 is reserved, a single imager is formed, and the size and the weight of the device are reduced. The communication interface may be connected to various types of partial discharge detection devices, and is not limited to the partial discharge detection device for detecting ultrasonic waves in the present embodiment.

Optical detection device 1 sets up in the sunken one side of receiver 3 is put in the office, puts the receiver 3 in the office and sets up the through-hole, the through-hole is used for setting up optical detection device 1, and optical detection device 1 puts sensor 2 adjacent setting and optical detection device 1 is unanimous with the detection direction that the detection device was put in the office. The optical detection apparatus 1 is capable of detecting an image signal. In order to reduce the influence of the optical detection device 1 on the concentration of the ultrasonic information on the partial discharge sensor 2, the outer surface of the optical lens may be flush with the paraboloid of the partial discharge receiver 3, as shown in fig. 7. The optical detection device 1 and the detection part 4 are detachably connected, for example, by a screw connection or a snap connection, so that the optical detection device 1 can be detached and the weight of the device can be reduced when imaging is not required. The optical detection device 1 includes an infrared optical detection device, an ultraviolet optical detection device, and a visible light optical detection device. The optical detection device 1 may be formed by any combination of an infrared optical detection device, an ultraviolet optical detection device, and a visible light optical detection device.

The infrared optical detection device comprises an infrared optical lens, an infrared detector and an infrared signal processing circuit. The infrared optical lens comprises an infrared optical lens, and the infrared optical lens is used for focusing the received infrared radiation to the infrared detector. The infrared optical lens can adopt a wide-angle lens, a fish-eye lens and the like. Materials of the lens, such as silicon, germanium, vulcanized glass and the like which can transmit infrared light; wherein the lens is selected to transmit 8-14 microns or 3-5 microns of infrared light because the wavelength of the heat radiation from the human body is characterized by the above-mentioned infrared wavelength range. The infrared detector adopts a refrigeration or non-refrigeration type infrared focal plane detector, and can convert infrared radiation passing through the infrared optical lens into an electric signal. The infrared signal processing circuit comprises a sampling circuit, an AD conversion circuit and a timing trigger circuit. The infrared signal processing circuit samples the electric signal output by the infrared detector in a set period. The electric signal is analog thermal image data, and the analog thermal image data is converted into digital thermal image data through the AD conversion circuit. The digital thermal image data includes AD value data of the thermal image, which includes binary data of 14 bits or 16 bits, and the like. The electric signal output by the infrared detector is not limited to the inherent resolution of the infrared detector, and can be lower or higher than the resolution of the infrared detector; the digital thermal image data obtained by the AD conversion circuit is not limited to the electrical signal output by the infrared detector, but may also be obtained according to the digital signal output by the infrared detector itself. The infrared optical detection device is provided with an infrared lens driving part, and the infrared lens driving part drives the infrared optical lens to execute focusing or zooming actions or manually adjust the infrared optical lens according to a control signal of the controller.

The ultraviolet optical detection device comprises an ultraviolet optical lens, an ultraviolet detector and an ultraviolet signal processing circuit. The ultraviolet detector includes an ultraviolet image intensifier that converts an ultraviolet signal of a specific wavelength band passing through an optical component into an electric signal. And the electric signal converted by the ultraviolet signal is subjected to signal processing of a preprocessing circuit to obtain ultraviolet data. The ultraviolet optical detection device is provided with an ultraviolet lens driving part.

The visible light optical detection device comprises a visible light optical lens, a visible light detector and a visible light signal processing circuit. Wherein an image of the subject is incident from the visible light optical component to a visible light detector including an image sensor. The image sensor may be a CMOS type image sensor capable of converting a subject image passing through the optical member into an electric signal. In this embodiment, the visible light optical lens is used for capturing and obtaining visible light data, and can visually express image information. The visible light signal processing circuit is used for performing setting processing on data obtained through the visible light optical lens to obtain image data of a visible light image, wherein the processing on the data comprises various image processing such as white balance compensation processing, Y compensation processing, YC conversion processing and the like to obtain image data consisting of a digitized brightness signal and a color difference signal. The images acquired by the visible light optical lens and the images acquired by the ultraviolet optical lens are overlapped, so that the intensity and the position information of the corona can be determined, and the running state of the equipment can be known. The visible light optical detection device is provided with a visible light lens driving part.

As shown in fig. 6, the signal processing means includes communication means, positioning means, storage means, image processing means, bluetooth, and control means.

The communication device can receive and send wireless signals of 5G, 4G, WIFI and the like according to wired or wireless communication specifications of USB, 1394, network, WIFI, 4G, Bluetooth and the like. The communication device can wirelessly transmit image data, partial discharge data and the like obtained by detecting the optical lens and the partial discharge detection device to a storage module or a processing device outside the device, such as a server of a local area network, other handheld terminals, a cloud server and the like. The communication device may connect the integrated detection device to an external device such as an external computer, a storage device, or a probe device via an interface.

The positioning device can be connected with a GPS or Beidou positioning system through the communication device and carries out data transmission, and the positioning device can acquire the position information of the detection device in the detection process.

The storage device includes a flash memory card, a temporary storage device, and a nonvolatile storage device. The flash memory stores programs used by the controller to control other components, and various data used by the controller to control the components. The temporary storage device is a volatile memory such as a RAM or a DRAM, and temporarily stores the image data output from the optical detection device 1 as a buffer memory. The temporary storage device can also be used as a temporary working memory of the image processing device and the controller, and can store data processed by the image processing device and the controller for a short time. The nonvolatile memory device is a memory card in this embodiment, and the memory card is provided with a memory card slot. The memory card slot is arranged on the surface of the housing and can be arranged near the display device 6. The inside of memory card slot is provided with the memory card interface, realizes the transmission and the record of detection information.

The image processing means are used for further processing of the image data obtained by the optical detection means 1. The image processing device can be shared by the ultraviolet optical lens, the infrared optical lens and the visible light optical lens, or can be independently configured by the ultraviolet optical lens, the infrared optical lens and the visible light optical lens. The image processing device processes the image data including correction, interpolation, pseudo color, synthesis, compression, decompression, etc. to convert the thermal image data preprocessed by the optical detection device 1 into data types suitable for display and recording. The image processing device performs set processing on thermal image data acquired by shooting by the optical detection device 1, including pseudo-color processing, to acquire image data of an infrared thermal image. The image processing device may be implemented using a DSP or other microprocessor or a programmable FPGA or the like. The image processing device is electrically connected with the control device or the image processing device and the control device are integrally manufactured.

The image processing device can also perform image synthesis processing on images acquired by the ultraviolet optical lens, the infrared optical lens and the visible light optical lens. The image synthesis processing comprises synthesis processing of an ultraviolet image and an infrared image, and synthesis processing of an infrared image and a visible light image. Wherein, the infrared optical lens and the ultraviolet optical lens can adopt the same degree of lenses; the infrared optical lens and the visible light optical lens may adopt lenses of the same degree. The matching degree of the images collected by the lenses can be calibrated by adopting the lenses with the same degree, and then the deviation compensation on the common distance is carried out.

And the ultraviolet image is synthesized according to the ultraviolet data of the ultraviolet image and the infrared image. The ultraviolet data comprise photon positions and photon numbers, the photon positions are coordinate information of the photons in the ultraviolet image, and the photon numbers are the numbers of the photons in the area range with the set size. And the ultraviolet image and the infrared image are synthesized on the basis of the infrared image.

The synthesis processing of the infrared image and the visible light image comprises recognition matching processing of the infrared image and the visible light image. And the identification matching process carries out matching calculation according to the contour texture features of the detected body in the visible light image and the infrared image. Meanwhile, according to the position of the ultraviolet image on the visible light, the ultraviolet image can be synthesized on the infrared image, and the visible light image can not be displayed at the moment, so that the phenomenon that the image is displayed unclear is avoided.

The display device 6 includes a display screen and an operation device. The display screen is electrically connected with the control device, and the display screen can display the image data stored in the temporary storage device and used for displaying. The display screen is provided with an image output interface, and detected images can be output to a more precise detection instrument through the image output interface for further analysis. The display screen can be selected from 4: the liquid crystal display screen 3 can display the thermal image data obtained after conversion by the image processing device, and meanwhile, the cost is saved as much as possible when the perspective of the display requirement is realized; screen aspect ratios of 16: the liquid crystal display screen 9 can display the processed image data in more detail, and can also display ultraviolet thermal images, infrared thermal images, position information, shot object information and the like. The operation device is arranged around the display screen and comprises a recording key, a switching key, a focusing key, a confirming key and a cross key. In the implementation process, a user operates the operating device to send corresponding instructions to the control device, and the control device executes corresponding programs so as to control the running state of the comprehensive detection device. The recording key is used for recording indication operation; the switching key is used for switching the information of the tested object.

The Bluetooth can be connected with Bluetooth equipment, such as a Bluetooth headset, and a user can conveniently use and operate the Bluetooth headset.

The control device is electrically connected with the communication device, the positioning device, the storage device, the image processing device, the Bluetooth, the display screen and the operation device, and can be realized by a CPU, an MPU, an SOC, a programmable FPGA and the like. The program for controlling the control device is stored in the flash memory, and the data records in the control process are also stored in the flash memory.

The information obtained by the partial discharge detection device and the optical detection device 1 can be recorded in association, for example, according to the location of the subject, the test time, and the like. The information of the subject and the position information corresponding to the subject can be stored in advance in a storage device of the integrated detection device or in a storage medium of a processing device that performs wireless communication with the integrated detection device before the integrated detection device performs detection.

The casing still is provided with the earphone jack, can let the user obtain more comprehensive information of putting detection device and obtaining by the office intuitively.

The comprehensive detection device is also provided with an alarm device which can send out an alarm signal under the set condition. The set condition includes that an area exceeding the set temperature exists in the infrared thermal image, and the infrared thermal image is displayed on the display device 6; when the partial discharge image or sound exceeds a set value, the image collected by the partial discharge detection device is displayed on the display device.

Example two:

in this embodiment, the ultraviolet optical lens and the visible light optical lens are integrally formed, that is, an optical composite lens of ultraviolet light and visible light is adopted, and the optical composite lens includes a spectroscope. The optical synthesis lens can better control the zoom synchronism of the ultraviolet optical lens and the visible light optical lens, and the images obtained by the two lenses are more consistent.

When the optical synthesis lens is adopted, two light inlets, namely an infrared light inlet and ultraviolet and visible light inlets, can be seen from the outside of the optical detection device 1; an infrared detector, an ultraviolet detector and a visible light detector are arranged in the optical detection device 1. The image information obtained by the ultraviolet light inlet and the visible light inlet is processed by the spectroscope and then respectively transmitted to the ultraviolet detector and the visible light detector.

Example three:

in this embodiment, the ultraviolet optical lens and the infrared optical lens are integrally formed, that is, an ultraviolet and infrared optical synthesis lens is adopted, and the optical synthesis lens includes a spectroscope.

The above description is only one specific example of the present invention and does not constitute any limitation to the present invention. It will be apparent to those skilled in the art that various modifications and variations in form and detail may be made without departing from the principles and structures of the invention without departing from the spirit and scope of the invention, but such modifications and variations are within the purview of the appended claims.

Claims (10)

1. A comprehensive detection device is characterized by comprising an optical detection device, a partial discharge detection device, a shell and a display device; the optical detection device comprises an optical lens; the optical lens and the display device are arranged on the shell.

2. The integrated testing device of claim 1, wherein the housing is generally of a folded angle type, and the housing includes a testing portion and a handle portion, the handle portion being disposed below the testing portion.

3. An integrated test device according to claim 2, wherein the partial discharge test device comprises a partial discharge sensor and a partial discharge receiver; the partial discharge receiver is arranged on the shell and is arranged at one end, far away from the handle part, of the detection part; the partial discharge sensor and the optical lens are arranged at one end of the detection part far away from the handle part, and are positioned in the partial discharge receiver; the optical detection device is arranged in the through hole on the sunken surface of the partial discharge receiver.

4. The integrated detection device according to claim 2, wherein the display device is disposed at an end of the detection portion adjacent to the handle portion.

5. The integrated detecting device according to claim 3, wherein the partial discharge receiver is a parabolic receiver, the partial discharge receiver is generally shaped like a pot cover, and one side of the partial discharge receiver protrudes; the other side is concave; the partial discharge sensor is arranged on one side of the recess of the partial discharge receiver, and can be of a telescopic structure; a communication interface is arranged between the partial discharge detection device and the detection part, and the partial discharge detection device and the communication interface adopt a detachable connection mode; the communication interface can be connected with various types of partial discharge detection devices.

6. An integrated detecting device according to claim 3, wherein the optical detecting device is disposed adjacent to the partial discharge sensor and the detecting direction of the optical detecting device is the same as that of the partial discharge detecting device; the optical detection device and the detection part adopt a detachable connection mode.

7. An integrated detection device according to claim 6, wherein the optical detection device is a combination of one or more of an infrared optical detection device, an ultraviolet optical detection device and a visible light optical detection device; the infrared optical detection device comprises an infrared optical lens, an infrared detector and an infrared signal processing circuit; the infrared detector adopts a refrigeration or non-refrigeration type infrared focal plane detector;

the ultraviolet optical detection device comprises an ultraviolet optical lens, an ultraviolet detector and an ultraviolet signal processing circuit; the visible light optical detection device comprises a visible light optical lens, a visible light detector and a visible light signal processing circuit.

8. An integrated test device according to claim 6, characterized in that the integrated test device further comprises signal processing means; the interior of the shell is hollow and is used for arranging a signal processing device; the signal processing device comprises a communication device, a positioning device, a storage device, an image processing device, Bluetooth and a control device.

9. The comprehensive detection device according to claim 8, wherein the image processing device converts the thermal image data obtained by the optical lens into a data type suitable for display and recording through correction, interpolation, pseudo color, synthesis, compression and decompression operations; the communication device can receive and send out wireless signals of 5G, 4G, WIFI; the communication device wirelessly transmits image data and partial discharge data obtained by detection of the optical lens and the partial discharge detection device to a storage module or a processing device outside the device; the communication device is provided with an interface for data transmission.

10. An integrated test device according to claim 8, wherein the storage means comprises a flash memory card, a temporary storage means, and a non-volatile storage means; the temporary storage device is a volatile memory and comprises a RAM and a DRAM; the nonvolatile storage device is a storage card, the storage card is arranged in the storage card slot, and the storage card can be freely disassembled and assembled in the storage card slot; a memory card interface is arranged in the memory card slot;

the display device comprises a display screen and an operation device; the display screen performs control according to the received instruction of the control device, and generates and outputs the image data for display stored in the temporary storage device into a video signal which can be displayed on the display screen; the display screen adopts a screen with the aspect ratio of 4: 3 or 16: 9, a liquid crystal display screen; the operation device is arranged around the display screen and comprises a recording key, a switching key, a focusing key, a confirmation key and a cross key;

the comprehensive detection device is also provided with an alarm device which can send out an alarm signal under a set condition;

the handle part and the detection part are integrally manufactured, and an obtuse angle is formed between the detection part and the handle part.

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